Christiansen; Keith W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Christiansen; Keith W..The latest application filed is for "method of forming a fluid seal".
- Christiansen; Keith W. - Fox River Grove IL
| Patent | Date |
|---|---|
| Method of forming a fluid seal Grant 4,851,176 - Christiansen , et al. July 25, 1 | 1989-07-25 |
| Sinuous seal with auxiliary excluder lips Grant 4,336,945 - Christiansen , et al. June 29, 1 | 1982-06-29 |
| Multiple lip seal Grant 4,219,205 - Christiansen , et al. August 26, 1 | 1980-08-26 |
| Retainer assembly for mold plate Grant 3,993,420 - Haas , et al. November 23, 1 | 1976-11-23 |
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